iphone toodledo to desktop toodledo

Hello- I'm new to the iphone & new to toodledo. I'm hoping someone can help me by telling me step by step how to create an account on the iphone so it will synch with the toodledo on my desktop. When I go to "new account" and choose "other" I don't understnad the fields- name, address, password, description. I put in my name, the web address of toodledo, my toodledo password, and toodledo for the description. I get an error message that the email address is invalid- What could I be doing wrong? I would appreciate someone taking the time to help me with this-